18.1 Securities-Definition of Recurring Terms is a financial regulatory document that outlines the definitions of key terms used in the securities' industry. The document is intended to ensure consistency in the interpretation and use of terms across the industry. The terms it defines include those related to the securities' industry, such as “security,” “issuer,” “dealer,” “broker,” “exchange,” and “market.” It also covers terms related to specific types of securities, such as “convertible debt,” “covered call,” and “put option.” Finally, it defines terms related to the registration and reporting of securities, such as “Form S-1” and “Form 10-Q.” Different types of 18.1 Securities-Definition of Recurring Terms include definitions of terms related to corporate finance, securities trading, and public offerings.